MESON Chess Problem Database
Problem Display
PID: 199685 (8/5R2/2p1kpP1/2Kbp1p1/6N1/3Q4/2N5/8 w - - 0 1)
Rains, Cyril George
The Observer, 1946
(First published on Sun Apr 7 1946)
#2
6 + 6
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...f5
- 2.Qxf5#
- 1...Bh1
- Tries
- 1.Sa1?
- 1...Be4
- 2.Qd7#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- 1...Be4
- 1.Se1?
- 1...Be4
- 2.Qd7#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- 1...Be4
- 1.Sa3?
- 1...Be4
- 2.Qd7#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- 1...Be4
- 1.Sce3?
- threat
- 2.Qf5#
- 1...Be4
- 2.Qd6#
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- threat
- 1.Sb4?
- 1...Be4
- 2.Qd7#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- 1...Be4
- 1.Sge3?
- threat
- 2.Qf5#
- 1...Be4
- 2.Qd6#
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- threat
- 1.Sh6?
- threat
- 2.Qf5#
- 1...Be4
- 2.Qd6#
- 2.Qd7#
- 1...f5
- 2.Qxf5#
- 1...e4!
- threat
- 1.Ra7?
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5!
- 1...Be4
- 1.Rb7?
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5!
- 1...Be4
- 1.Rc7?
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5!
- 1...Be4
- 1.Rg7?
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5!
- 1...Be4
- 1.Rh7?
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...f5!
- 1...Be4
- 1.Qf1?
- threat
- 2.Qxf6#
- 1...f5
- 2.Qxf5#
- 1...Bf3!
- threat
- 1.Qe2?
- threat
- 2.Sd4#
- 1...Kf5
- 2.Rxf6#
- 1...Be4!
- threat
- 1.Qf3?
- threat
- 2.Qxf6#
- 1...f5
- 2.Qxf5#
- 1...Bxf3!
- threat
- 1.Sa1?
- Keys
- 1.Qd4!
- 1...Kf5
- 2.Rxf6#
- 1...exd4
- 2.Sxd4#
- 1...f5
- 2.Qxe5#
- 1...Bh1
- 2.Qd7#
- 1...Ba2
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bf3
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 1...Be4
- 2.Qd7#
- 1...e4
- 2.Qxf6#
- 1...Kf5
- 1.Qd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- P(f);::QAB1(B),XP(f)
- Tries
- Try
- S(A);
- Vars
- B(a);OGATE::QAB1(B)
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(A);
- Vars
- B(a);OGATE::QAB1(B)
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(A);
- Vars
- B(a);OGATE::QAB1(B)
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(A);
- Threat
- QAB1(B)
- Vars
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(A);
- Vars
- B(a);OGATE::QAB1(B)
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- QAB1(B)
- Vars
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- QAB1(B)
- Vars
- P(f);::QAB1(B),XP(f)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- B(a);OGATE::QAB1(B)
- P(b);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- Q(B);
- Threat
- QAR1(B),XP(f)
- Vars
- P(f);::QAB1(B),XP(f)
- Refutation
- B(a);
- Try
- Q(B);P_PINP(b)
- Threat
- S(A)
- Vars
- K(e);N_SPINP(b),P_SPINP(f),S_FLIGHT::R1(F),XP(f)
- Refutation
- B(a);N_SPINP(b)
- Try
- Q(B);
- Threat
- QAR1(B),XP(f)
- Vars
- P(f);::QAB1(B),XP(f)
- Refutation
- B(a);XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::R1(F),XP(f)
- P(b);XQ(B)::S(A),XP(b)
- P(f);N_GUARD::QAR1(B),XP(b)
- B(a);OGATE::QAB1(B)
- P(b);OGATE::QAR1(B),XP(f)
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